Beef with sprigs

1 (4 lb) beef brisket , with 1/3-inch layer fat salt fresh ground black pepper 1/4 cup extra virgin olive oil 5 garlic cloves , smashed 2 medium onions ,[...]

1 ounce dried porcini mushrooms 1 1/2 cups lukewarm water 4 tablespoons olive oil 2 ounces pancetta , cut into 1/4-inch dice 1 1/2 lbs boneless beef shank or[...]